We are seeing a crash in the Zendesk Messaging Android SDK when the conversation screen renders HTML content. The app throws java.lang.AbstractMethodError referencing android.text.Html$TagHandler.handleTag(boolean, java.lang.String, android.text.Editable, org.xml.sax.XMLReader) during HTML to Spanned conversion.
Zendesk Messaging (Android) SDK version：zendesk.messaging:messaging-android:2.34.0
Crash Detail：
Fatal Exception: java.lang.AbstractMethodError: abstract method "void android.text.Html$TagHandler.handleTag(boolean, java.lang.String, android.text.Editable, org.xml.sax.XMLReader)"
at android.text.HtmlToSpannedConverter.handleStartTag(Html.java:842)
at android.text.HtmlToSpannedConverter.startElement(Html.java:1243)
at org.ccil.cowan.tagsoup.Parser.push(Parser.java:795)
at org.ccil.cowan.tagsoup.Parser.rectify(Parser.java:1062)
at org.ccil.cowan.tagsoup.Parser.pcdata(Parser.java:994)
at org.ccil.cowan.tagsoup.HTMLScanner.scan(HTMLScanner.java:581)
at org.ccil.cowan.tagsoup.Parser.parse(Parser.java:450)
at android.text.HtmlToSpannedConverter.convert(Html.java:751)
at android.text.Html.fromHtml(Html.java:246)
at androidx.core.text.HtmlCompat$Api24Impl.fromHtml(HtmlCompat.java:195)
at androidx.core.text.HtmlCompat.fromHtml(HtmlCompat.java:162)
at zendesk.core.ui.android.internal.xml.RichTextHtmlExtensionsKt.toHtmlFormatted(RichTextHtmlExtensions.kt:34)
at zendesk.ui.android.conversation.textcell.TextCellView.setupHtmlTextSpan(TextCellView.kt:162)
at zendesk.ui.android.conversation.textcell.TextCellView.render(TextCellView.kt:122)
at zendesk.messaging.android.internal.conversationscreen.delegates.TextMessageContainerAdapterDelegate$ViewHolder.createTextCell(TextMessageContainerAdapterDelegate.kt:335)
at zendesk.messaging.android.internal.conversationscreen.delegates.TextMessageContainerAdapterDelegate$ViewHolder.renderContent(TextMessageContainerAdapterDelegate.kt:202)
at zendesk.messaging.android.internal.conversationscreen.delegates.TextMessageContainerAdapterDelegate$ViewHolder.bind(TextMessageContainerAdapterDelegate.kt:151)
at zendesk.messaging.android.internal.conversationscreen.delegates.TextMessageContainerAdapterDelegate.onBindViewHolder(TextMessageContainerAdapterDelegate.kt:86)
at zendesk.messaging.android.internal.conversationscreen.delegates.TextMessageContainerAdapterDelegate.onBindViewHolder(TextMessageContainerAdapterDelegate.kt:61)
at zendesk.messaging.android.internal.adapterdelegate.ListItemAdapterDelegate.onBindViewHolder(ListItemAdapterDelegate.kt:49)
at zendesk.messaging.android.internal.adapterdelegate.ListItemAdapterDelegate.onBindViewHolder(ListItemAdapterDelegate.kt:35)
at zendesk.messaging.android.internal.adapterdelegate.AdapterDelegatesManager.onBindViewHolder(AdapterDelegatesManager.kt:121)
at zendesk.messaging.android.internal.adapterdelegate.AsyncListDifferDelegationAdapter.onBindViewHolder(AsyncListDifferDelegationAdapter.kt:50)
at androidx.recyclerview.widget.RecyclerView$Adapter.bindViewHolder(RecyclerView.java:7847)
at androidx.recyclerview.widget.RecyclerView$Recycler.tryBindViewHolderByDeadline(RecyclerView.java:6646)
at androidx.recyclerview.widget.RecyclerView$Recycler.tryGetViewHolderForPositionByDeadline(RecyclerView.java:6917)
at androidx.recyclerview.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:6757)
at androidx.recyclerview.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:6753)
at androidx.recyclerview.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:2362)
at androidx.recyclerview.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1662)
at androidx.recyclerview.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1622)
at androidx.recyclerview.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:697)
at androidx.recyclerview.widget.RecyclerView.dispatchLayoutStep2(RecyclerView.java:4645)
at androidx.recyclerview.widget.RecyclerView.onMeasure(RecyclerView.java:4022)
at android.view.View.measure(View.java:29591)
at androidx.constraintlayout.widget.ConstraintLayout$Measurer.measure(ConstraintLayout.java:861)
at androidx.constraintlayout.core.widgets.analyzer.BasicMeasure.measure(BasicMeasure.java:491)
at androidx.constraintlayout.core.widgets.analyzer.BasicMeasure.measureChildren(BasicMeasure.java:140)
at androidx.constraintlayout.core.widgets.analyzer.BasicMeasure.solverMeasure(BasicMeasure.java:285)
at androidx.constraintlayout.core.widgets.ConstraintWidgetContainer.measure(ConstraintWidgetContainer.java:119)
at androidx.constraintlayout.widget.ConstraintLayout.resolveSystem(ConstraintLayout.java:1634)
at androidx.constraintlayout.widget.ConstraintLayout.onMeasure(ConstraintLayout.java:1777)
at android.view.View.measure(View.java:29591)
at android.widget.RelativeLayout.measureChildHorizontal(RelativeLayout.java:749)
at android.widget.RelativeLayout.onMeasure(RelativeLayout.java:495)
at android.view.View.measure(View.java:29591)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:7383)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:207)
at android.view.View.measure(View.java:29591)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:7383)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:207)
at androidx.appcompat.widget.ContentFrameLayout.onMeasure(ContentFrameLayout.java:141)
at android.view.View.measure(View.java:29591)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:7383)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1608)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:878)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:721)
at android.view.View.measure(View.java:29591)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:7383)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:207)
at android.view.View.measure(View.java:29591)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:7383)
at android.widget.LinearLayout.measureChildBeforeLayout(LinearLayout.java:1608)
at android.widget.LinearLayout.measureVertical(LinearLayout.java:878)
at android.widget.LinearLayout.onMeasure(LinearLayout.java:721)
at android.view.View.measure(View.java:29591)
at android.view.ViewGroup.measureChildWithMargins(ViewGroup.java:7383)
at android.widget.FrameLayout.onMeasure(FrameLayout.java:207)
at com.android.internal.policy.DecorView.onMeasure(DecorView.java:1037)
at android.view.View.measure(View.java:29591)
at android.view.ViewRootImpl.performMeasure(ViewRootImpl.java:5824)
at android.view.ViewRootImpl.measureHierarchy(ViewRootImpl.java:4043)
at android.view.ViewRootImpl.performTraversals(ViewRootImpl.java:4402)
at android.view.ViewRootImpl.doTraversal(ViewRootImpl.java:3708)
at android.view.ViewRootImpl$TraversalRunnable.run(ViewRootImpl.java:12542)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:1751)
at android.view.Choreographer$CallbackRecord.run(Choreographer.java:1760)
at android.view.Choreographer.doCallbacks(Choreographer.java:1216)
at android.view.Choreographer.doFrame(Choreographer.java:1142)
at android.view.Choreographer$FrameDisplayEventReceiver.run(Choreographer.java:1707)
at android.os.Handler.handleCallback(Handler.java:959)
at android.os.Handler.dispatchMessage(Handler.java:100)
at android.os.Looper.loopOnce(Looper.java:257)
at android.os.Looper.loop(Looper.java:342)
at android.app.ActivityThread.main(ActivityThread.java:9634)
at java.lang.reflect.Method.invoke(Method.java)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:619)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:929)